System of electrical distribution.



m r,- PATBNTED JAN. 1, 1907. H 1 R. HUNDHAUSBN.

SYSTEM OF ELECTRICAL DISTRIBUTION.

APPLIUATION FILED PEB19.1900.

2 SKEETS-SHEET l.

PATENTED JAN. 1, 1907. R. HUNDHAUSEN.

SYSTEM OF ELECTRICAL DISTRIBUTION.

APPLIUAI'ION FILED I'BBJQ. 1900.

2 BHEBT8-8HBET 2.

.Ezvezfar 1o mg a part of this speci ication.

sTAT ss PATENT L a "RQDbLE-LHUNDHAUSEN, or WILMERSDORF, NEAR BERLIIiI, "ASSIGNOR, BY MESNE ASSIGNMENTS, TO GENERALELE TRL O Parr, A CORPORATION or NEW YORK.

' SYSTEM OF ELECTHFCAK DISTRIU'l'ION- No. 840,216. Specification of LettersPatent. Patented Jam 1, 1967."

Application filed February s, 1900. Serial No. 5.735.

To all whom it may concern: remainingjside of the subcircvit. v A fuse- Be it known that I, RUDOLF' HUNDHAUSE plug had always to be inserted in that fuse- 5 5 a subject of the Emperor of Germany, resid plug receptacle or socket whose interior con- I; ing at Wilmersdorf, near Berlin, Germany, tact was connected with the neutral wire 5 have invented a certain new and useful Imwhile the polarity-of the remaining wire oi provement in Systems of Electrical Distributhe subcircuit depended upon which of the. tion of which the following is a full, clear, other socke ts had'fuse-plugs inserted there- 6cm concise, and exact description, reference t-e- 1n, the polarity being-either positive or neFai l ing had to the accompmymg drawings, fojntive, depending upon .whether the fuse was inserted in the socket who'se centralfcon- My invention relat: s to electrical systems tact was connectedwith the positivewire or of distribution, and more particularly to cir-' in the socket whose central contact was concuits-employin three or more transmissionnected with the negative wire. It is obvious 1 conductors, an has for its object the provithat in thisconstruction the direction of the 1 s on of an .improved fuse-base whereby subcurrent inl the subcircuit depends upon the circuits may be safely connected between insertion of the fuse-plugrn one or the other different sides of the system. of the sockets. Short circuits may also occur .wIn electrical systems of distribution in inconstructions of thiskind, inasmuch as the which three or more wires are used it. is iref insertion of two fuse-plugs simultaneously 2o quently necessary that the fi se-be as be of into the two sockets whose external contactsuch construction that subcircuits, which, as terminals are connected together would arule, employ onlytwo wires, may be connect' cause a short circuit between the two extered to either one of the circuits of the distribunal conductors of the three-wire system. tion system. For instance, in a three-wire Difficulties of like nature were occasioned by 2 5 direct-current system it is desirable so to comthe use of similar fuse-oases when used in construct the fuse-bases that a subcircuit may nectionwith threehase s stems. be connected either between the positive and It is the prime object of this invention to neutral wires or between the negative and provi e & -base Const ct o whereby neutral wires at the same point. It. is also subcircuits may be changed from one side of c of decided advantage that the fuse-bases be the transmission system to the other without of such form and the arrangement of the fusea reversal of the current therethrough and plugs such that this change of connection wherein the improper insertion of fuselugs 8 will not reverse the current through the subinto the sockets causing short circuits is circuit. In three-phase alternating circuits avoided.

it is likewise of importance that subcircuits n accordance with my invention I so rela- -.;1 ceptacle or socket7being connected directly irgsQi may be readily connected between any two tively, dispose certainfuse-sockets upon the of the three main conductors, and my invenfuse-base that their central displacement- -tion provides means" whereby this may be '5. e., the distance from center to center theresatisfactorily and easily accomplished. of-is somewhat less than the external di- 40- -In the fuse-bases as formerly constructed ameter of a fuse-plug. I also preferably means were supplied whereby a subcircuit provide two fuse-sockets for one of the transiught be connected across either circuit of a mission-conductors, preferably the neutral 5 three-wire system, the three conductorsof wire uina. three-wire direct-current system, 1

- the three-wire system bei connected, --re- :so that-the pblarity of thssubiiitcuit remains 5 spectively, to three interna contact-termidi i nals of the fuselug. receptacles upon thf lQflde'scribe my invention more-particufuse-base, oneexternal contact 'of a fusereljflarlyb 'referencelto the accompanying draw- 10c h llustrating diagrammatically t e pre- .fto one side of the subcircuit; the-central: c311 fencedembodimerit thereof, in which I i 555 tact of this onebelng connected to. the: s n; -J11g ire isa si eel v 01fa fuse-base tructediinaccordance with my inventral wire of the,three-w1re'syst1ri:,.the.

- two enternal contacts of pher maming Flg 2-, am Yiew thereof Eiga'S ets bem goonnected g digggfimticglljhhlafi rangement-rof fuse-bases in accordance with I my invention as ap lied to three-wire directcurrent systems, t c three ossiblc' conditions of the polarity of the-subcircuit as controlled by the various arrangements for fuseplugs being shown. Figs'. 6 and 7 represent diagrammatically the preferred embodiment of my invention as applied to three wire direct-current systems. Figs. 8, 9, and

lo 10 represent one embodiment of my invention lar systems. is-the preferredembodiment of .as appliedto three-phase three-wire systems.

plugs2, and 5 -wiref:a.three-w1re system supplied by the sourceofcurrent (land furnishing current to as applied to three-wire three-phase systems. Figs. 11, 12, and 13 represent another embodiment. of In invention as agpliedmo simi 'igs. l4, 15, an 16 represent my invention Ike figures of reference indicate similar parts throughout the figures.

Referrin 'now'to Figs. 1, 2, and 3, wfusebase 1; is-sgownias supplied with four fusesQQketSQ 3 4 5,.the central contactsof fusebelngconnected to the neutral 2 translating devices 7. The internal contact gossystem. The externalcontact-terminalsof 5 the external contacts 2 -fuselugs ini two ad cuit :18 'connected between the 55.nected means in the of fuse-socket wire in thethree-wire system in this instance, while the internal -nected, as .arepalsothe external c0ntact-ter have -an-external diameter which is larger 0 than'the. central displacement of two. adja- 3 is connected to the positive contact. of fuse-socket 4 is connectedto the negative wire "of the same fuse-sockets 2 and 3-are electrically con minals of'thefuse-sockets 4 and 5. One side ofthesubcircuit 8-is preferably connected to and 3, while the re maining side of the subcircuit is preferably connected to. the external contact-terminals of the sockets .4 and 5. The fuse-plugs 9 cent fuse-sockets, thereby permitting of only three conditions for insertion .of fuse-plugs, which are diagrammatically illustrated in Figs. 3, 4, and 5, it being impossible to insert jacent fuse-sockets, there obviating the difliculties of short circuits abovelreferred to.

In -Fig.3.-fuse-plu s are shown as inserted infuse-sockets 3 an 5, whereby the subcirpositive and neutral .wires, the left-hand wire of the subcircuit 8 being of higher potential. In Fig. 4 fuse-plugs are shown) as inserted in fuse-sockets 2 and 4; whereby the subcircuit is conbetween the neutral and negative wires-of. the three-wire system, the left-hand wire being again of higher potential than the remaining wire. It is obvious from these two.fi%|res that by the use of the improved isclosed in my invention the of the subcircuit 8 remains th s ective of its connections between the con uctors of the three-wire system. y In Fi 5fuse-plugs are shown as inserted f se-sockets 2 and 5, whereby both I peel-115+ j ing current to translating e same irre conditions or cults.

sides of the subcircuit 8 are tively associate t e fuse-sockets upon the fuse-base in the manner shown in Figs. 6 and 7, in which the fuse-sockets are shown as arran ed at the vertices of a s uare the length oft 1e sides of the square being somewhat less than the external diameter of the fuseplug, the diagonal of the square, however, being at. least e ual to or larger than the said diameter, where y only two arrangements of fuse-plugs in the fuse-sockets is possible. One arrangement is shown in Fig. .6, and the remaining one in Fi 7. Inboth of these arrangements the lei-hand wire is positive with respect to the-right-handwire, andno reversal of current takes place upon a change of connections from that shown in Fi ,6 to

In Figs 8, 9, and 10 I have shown diagrammatically the relative dispositions of fusesockcts upon a fuse-base n accordance with my invention as applied to a three-phase three-wire system consisting of a three-phase generator 10 and the three transmission-com ductors 11, 12, and 13, a subcircuit 8furnishdevices 7, thethree possible arrangements of fuse-plugs being shown therein. The central nals of two fuse-sockets are connected to one of the wires of the three-wire system+in this instance wire 12-the central contacts of the remainim fuse-sockets being respectively connected to the remaining wires of the threephase system. The external contact-terminals of sockets 2 and 3 are united electrically and connected to one side of the subcircuit 8, while the external contact-terminals of fusesockets 4.and 5 are electrically united and connected to the remaining wire of the-said subcircuit In Fig. 8 the subcircuit 8 is-connected across the transmission-conductors 11- and 12, in Fig. 9 across the transmission-conductors 11 and 13, and in Fig. 10 across the transmission-conductors 12 and 13, the'central displacement of adjacent fuse-sockets being such that two fuse-plugs may not beinserted therein at the same time and avoiding thedifiiculty of short circuits, also obviating the diiiiculty of having the two sides of the subcircuits connected to a single transmission-conductor, which would be the-case if se-plugs could be simultaneously inserted in the fuse-sockets 3-and 4. It is apparent, therefore,-that by the use of my improved means electrical subcircuits may be safely changed from oneside of a system to the other. without thereby injuring the electrical in any way causing short cir- In-Figs. l1, 12,.and-13 I have shown anarranging the fuse-sockets,

contact-termicuits, comprising indepen the central displacement of adjacent sockets being again less than the external diameter of the fuse-plugs, while the displacement between fuse-sockets 2 and 5 is equal to or greater than the said diameter, the three possible conditions for insertion of fuse-plugs be ing diagrammatically indicated in said figures.

Figs. 14, 15, and 16 illustrate diagrammatically another simple arrangement of fuse-sockets, said arrangement being in a straight line and adjacent sockets having a central displacement of less than the diameter of a fuse-plug, the three ossible conditions for the insertion of fuseugs being diagrammatically indicated in the sa (1 figures, the relative arrangement of the subcircuits between the three sides of the transmissionconductors being similar to those shown in Figs. 8, 9, and 10.

While I have herein shown and particularly described the preferred embodiment of my invention, I do not wish to be limited to the precise arrangement shown, as modifications may readily be made without departing from the spirit thereof, and I therefore claim as new, and desire to secure by Letters Patent, the following:

1. A device for connecting a single circuit with any one of a pluralit of ene'"gizin circuits without reversin t conductors of the single circuit, which consists in independent means for connecting the opposite sides of the single circuit with any one of the conductors of the plurality of energizing-circuits, and means for causing all such connections made simultaneously to retain the polarity of the aforesaid conductors constant, substantially as described.

2. A device for connecting a single circuit with any one of a pluralit of energizing-cird iant means for connecting the opposite sides of said single circuit with any one of the conductors of the plurality of circuits, said means bein con structed so as to prevent different simu taneous connections from changing the polarity of conductors of the single circuit, substantially as described. V

3. A device for connecting a single circuit with any one of a plurality of circuits, which consists of a base having a plurality of sock- ,ets to which the conductors of the single circuit and the plurality of circuits are connected so as to permit the connection of the sides of the single circuit with desired conductors of the plurality of circuits, and plugs adapted to fit in said sockets, said connection to the sockets being made and the plugs being construct'ed so as to prevent simultaneousconnection made by insertin the plugs from changin the relative polarity of the conductors in th scribed. a

4. A device for connecting a single circuit e polarity o the e single circuit, substantially as dewith any one of a plurality of energizing-circuits, which consists of a base having a plurality of sockets to which the conductors of the single circuit and of the lurality of energizing-circuits are connected so as to permit a the connection of the opposite sides of the single circuit with any one of the conductors of the plurality of circuits, plugs adapted to fit into said sockets and having their outer ends enlarged, the connections to the sockets being such and the sockets being arranged in such a manner that plugs to connect the single circuit with one of the plurality of circuits to establish different polarities in the single circuit, cannot be simultaneously inserted, substantially as described.

5. A device for connecting a three-wire system with subcircuit, comprising separately-movable means for connecting the conductors of the subcircuits with any one of the conductors of the three-wire system, and means for causing all simultaneous connections to produce in the conductors of the single circuit the same olarity for the currents pass 5 therethroug substantially as describe 6. A device for connecting three-wire systems With subcircuits, comprising a base having four sockets, two of which are connected with the neutral wire and the other two of which are connected with the ositive and negative wires and the plugs aving their outer ends made lar er than the central displacement of the socirets, whereby the plu s cannot be inserted in adjacent sockets, su stantially as described.

7. A device for connecting a three-wire system with subcircuits, consisting of a base having four sockets arranged at substantially equal distances from one another, two of said sockets having their inner contacts connected with the neutral wire of the system, and the other two of said sockets having their inner contacts connected with the positive and negative wires of the system, the outer contacts of one end pair of sockets being adapted for connection with one side of the subcircuit, and the outer contacts of the other end pair of sockets being adapted for connection with the other side of the subcircuit, and plugs adapted to fit into said sockate and having their outer ends made larger than the central displacement of said sockets,

whereby the plu s cannot be inserted into the adjacent soc ets, substantially as descri ed- 8. A device for connecting a vthree-wire system with subcircuits, comprisin a base having four sockets arranged in qua rilateral form, two of said other having the' inner contacts connected with the neutral Wire of said system, ,and the other sockets having their inner contacts connected with the positive and negative wires of said system,

sockets adjacent to one an- I2 5 the outer contacts of igo one of the sockets connected with the neutral wire and of the socket connected with the positive wire being adapted for connection with ones ide of the subcircuit, and the outer contacts of the other socket connected with the neutral wire and of the socket connected with the ne tive wire being adapted for connection. witithe other side of the subcircuit, and plugs adapted to fit into said sockets and having their-outer ends madelarger than the y distance .between centers of adjacent sockets,

substantially as described.

- 9.. Adevice of the class specified, comprising a basehaving a plurality of sockets, and a I 5 number of lugs adapted to fit into said sockets, said p ugs having their outer ends enlargedso as to prevent the simultaneous in- --ser-tion :of plugs intoadjacent sockets, sub- 1 stantially as described.

.10. A switching device, comprising a base having sockets and plu s adapted to fit into =said=\sockets, .having t eir outer ends enlargedso as to prevent the simultaneous insertion =ofplugs into adjacent sockets, substantially as described.

11. A device of the class specified, comprisin a base having a lurality of sockets arran e 'in quadrilatera form, and a number ofmp ugs adapted to fit into said sockets, the

' 3o plugs having their outer ends enlarged so as to revent plugs bein inserted simultaneous y into adjacent sofirets, substantially as -.described.

. 12. A device of the class specified, comrising azbase having sockets arrangedin the cm of a parallelogram and the distance bea tween. certain of said sockets shorter than the distancebetween others of said sockets, and 4 plugs adapted to fit into said sockets, said 40 plugs having their outer ends enlarged so as to prevent the simultaneous insertion of plugs in the sockets separated by the short distances, substantially as described.

13. The combination with a three-wire system and a subcircuit, of means comprising a air of independent circuit-closing devices or connecting thesubcircuit with any desired two of the three wires of the three-wire system, substantially as described.

5, 14. The combination with conductors affording a plurality of circuits and with a sin gle circuit, of means comprising a pair of inependent-circuit-closing devices for connecting the single circuit with the conductors forming any one of the said circuits, the polarity of the single circuit being the same irrespective of the conductors to which it is connected, substantially. as described. v

- 15. .A' device of the class specified, comprising three or .more sockets arranged so nection of the said subcircuit-conductors with; any but the desired cooperating conductors.

17. A device of the class specified, comprising plugs for connecting any desired conductors or sets of conductors, and-means for preventing the improper simultaneous connection of two or more of such conductors or sets'of conductors, substantially as-described.

18. In a device of the class described, the

combination with a sup ly-circuit having a given number of wires, 0 a consumption-circuit having a lesser number of conductingwires, and separately-movable means for selectively connecting conductors of the consumption-circuit with conductors of the supply-circuit, substantially as described.

19. In a-device of the class described, the combination with a supply-circuit having a given number of wires, of a consumptioncircuit having a lesser number of conductingwi'res, independent means for selectively connecting conductors of the consumptioncircuit with conductors of the supply-cirsuit, and means for preventing the-simultaneous connection of a conductor of the consumption-circuit with more than one conductor of the supply-circuit, substantially as described.

20. In a system of distribution, thecombination with a consumption-circuit, of a sup ply-circuit having more than two conductors, separately-movable means for connecting said consumption-circuit witheither of the supply-circuits, said means preventin the change of polarity of the conductors 0 said consumption-circuit irrespective of which of .the supply-circuits said consumption-circuit is connected with, substantially as described.

In witness whereof I hereunto subscribe my name this 26th day of January, A. D. 1900.

RUDOLF HUN DHAUSEN.

Witnesses:

HENRY HASPER, WOLDEMAR HAUPT. 

